I like this - could the dog be a little more groomed? Like maybe the silhouette of a hound or even a lab? I'm not sure - but the design is interesting!
I've added a lab, beagle and a basset hound in #18 I'm going to do a horizontal rectangle shape one too, so you could have the 'mobile dog grooming' and phone number underneath that.
If you want the circle design like #18 but still want the phone number on the actual logo, I could make the 'tidy hound' box wider and have the phone number underneath the 'tidy hound' text, leaving the 'mobile dog grooming' round the bottom.
Do you like the grey blue and red? I think I like the grey better than the green but I can do any colours :-)